Patents Represented by Attorney John J. Toney

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  • Process for enhanced orientation of polymeric films
    Patent number: 4797235
    Abstract: Described is the presence of both a chemical cross-linking agent and irradiation such as electron beam irradiation, in the manufacturing process for making an oriented, i.e. heat-shrinkable, polymeric film. The presence of both results in an amount of cross-linking that is effective to accomplish an increased orientation rate during manufacturing.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: January 10, 1989
    Assignee: W. R. Grace & Co.
    Inventors: Steven B. Garland, Thomas C. Warren
  • Non-smear food package
    Patent number: 4795034
    Abstract: Smearing of fat by fat-containing trayed food products on the interior surface of a thermoplastic overwrap is substantially reduced or eliminated by applying loading forces during a sealing step to the longitudinal edges of the tray containing food product. A tray with a convex bottom is preferred to enhance the quality of the seal. A convex heating plate can be used in conjunction with conventional trays.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: January 3, 1989
    Assignee: W. R. Grace & Co.
    Inventor: Robert E. Jahn
  • Apparatus and method for pleating film
    Patent number: 4795417
    Abstract: Thermoplastic film is fed from a roll and pleated by passing the film across a series of rigid guides. As the film is drawn down across the guides, the film is pleated and then gathered onto a wind up roll. A J-shaped roll rack is preferably pneumatically activated to bring a fresh roll of film into a position for feeding the pleating arrangement.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: January 3, 1989
    Assignee: W. R. Grace & Co.
    Inventor: David M. O'Connell
  • High oxygen barrier coextruded film
    Patent number: 4792488
    Abstract: A coextruded multilayer film includes a layer of a vinylidene chloride copolymer, and a layer of ethylene vinyl alcohol copolymer. The coextruded film has high oxygen barrier properties under both high and low humidity conditions.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: December 20, 1988
    Assignee: W. R. Grace & Co.
    Inventor: Henry G. Schirmer
  • Oxygen barrier laminates
    Patent number: 4788105
    Abstract: A thermoplastic laminate comprises an oxygen barrier film, and a second film adhered to the oxygen barrier film and comprising a polymeric material which adds heat resistance and stiffness to the laminate. Such materials are preferably polycarbonate, polyamide, polypropylene, and polyester.
    Type: Grant
    Filed: September 9, 1986
    Date of Patent: November 29, 1988
    Assignee: W. R. Grace & Co.
    Inventors: Walter B. Mueller, Henry G. Schirmer
  • Method and apparatus for making gas flushed packages
    Patent number: 4779398
    Abstract: A method and apparatus for making gas flushed packages in a vacuum chamber machine which includes a bag mouth clamp spaced apart form seal bars disposed to transversely seal the bag neck. A vertically moveable piercing blade and nozzle penetrate the upper wall of the bag neck as the chamber pressure is lowered and the bag "balloons" thereby causing the upper and lower neck walls to separate. Once the bag is pierced and the residual air escapes, a predetermined amount of gas is injected and then the bag is sealed. If desired, sufficient gas can be injected to make a pillow pack.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: October 25, 1988
    Assignee: W. R. Grace & Co.-Conn., Cryovac Div.
    Inventors: James L. Glandon, Joseph E. Owensby
  • Multi-stage corona laminator
    Patent number: 4778557
    Abstract: A multi-stage corona laminator may be used to produce a relatively thick, i.e., 10 mils or greater corona bonded laminate characterized by low dielectric build-up, and preferably the presence of one or more oriented layers within the laminate material.
    Type: Grant
    Filed: October 11, 1985
    Date of Patent: October 18, 1988
    Assignee: W. R. Grace & Co., Cryovac Div.
    Inventor: Henry G. Schirmer
  • Inter-ply adhesion between saran and linear ethylene copolymers
    Patent number: 4778715
    Abstract: Disclosed are multi-layer films having improved adhesion between layers. A film layer comprising vinylidene chloride copolymer is directly adhered to a film layer comprising a blend of ethylene/butyl-acrylate copolymer with linear ethylene/alpha-olefin copolymer.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: October 18, 1988
    Assignee: W. R. Grace & Co., Cryovac Division
    Inventors: Daniel J. Ferguson, Steven B. Garland
  • Method of making a patch for a shrinkable bag
    Patent number: 4770731
    Abstract: Disclosed is a protective patch for biaxially a heat shrinkable, thermoplastic vacuum bag for protecting the bag from puncture by sharp protruding bones in bone-in cuts of meat which are vacuum packaged within the bags. The patch is made from multi-layer film and preferably comprises outer layers of a blend of linear low density polyethylene and ethylene vinyl acetate copolymer and inner layers of ethylene vinyl acetate copolymer. The patch is heat shrinkable with the bag. A method of making the patch is also disclosed.
    Type: Grant
    Filed: December 4, 1987
    Date of Patent: September 13, 1988
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Daniel J. Ferguson
  • Easy-open bag and apparatus and method for making same
    Patent number: 4768411
    Abstract: A bag and a method and apparatus for forming an easy open bag in a vertical form-fill-seal process wherein a bag is formed from a sheet of thermoplastic film and a heat seal betwee bags as they are filled serves as the top closure for the lower bag and a bottom closure for the upper bag, the easy open feature being provided by easy tear slots which are cut at acute angles in both the bottom seal of a bag and the top so that an opening corner of the bag may be torn in either the top or bottom of the bag.
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: September 6, 1988
    Assignee: W. R. Grace & Co., Cryovac Div.
    Inventor: Philip P. Su
  • Multiple circuit board carrier/shipper
    Patent number: 4767002
    Abstract: The present invention is directed to an electrically conductive container with beveled edges and an improved blow molded carrier for efficiently storing and transporting such cases. The carrier has raised portions along its interior base which accommodate one or more of the containers. The invention is also directed to a process for storing electrically conductive containers, including blow-molding carrier means having beveled raised portions, and containers having beveled edges, and the insertion of the containers between adjacent raised portions of the carrier.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: August 30, 1988
    Assignee: W. R. Grace & Co.
    Inventor: Donald A. Malcolm
  • Protective patch for shrinkable bag
    Patent number: 4765857
    Abstract: Disclosed is a protective patch for biaxially a heat shrinkable, thermoplastic vacuum bag for protecting the bag from puncture by sharp protruding bones in bone-in cuts of meat which are vacuum packaged within the bags. The patch is made from multi-layer film and preferably comprises outer layers of a blend of linear low density polyethylene and ethylene vinyl acetate copolymer and inner layers of ethylene vinyl acetate copolymer. The patch is heat shrinkable with the bag. A method of making the patch is also disclosed.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: August 23, 1988
    Assignee: W. R. Grace & Co., Cryovac Div.
    Inventor: Daniel J. Ferguson
  • Hang bags having hanger portion of reinforcing member of non-shrink film laminated between two layers of shrink film
    Patent number: 4764028
    Abstract: A hang bag comprises a body portion 1 and a hanger portion 2. The body portion 1 is formed of face and rear panels 3 and 4 of shrinkable film sealingly joined together at the end 6, for instance by folding. It may be a double-side weld bag. The hanger portion 2 comprises (a) face and rear layers 10 and 11 of heat shrinkable film laminated or otherwise securely extending from, respectively, the face and rear panels 3 and 4 and (b) non-shrink film reinforcing material laminated between the layers 10 and 11, and the hanger portion (2) is provided, or capable of being provided, with a perforation 13 by which the bag may be hung from a peg. Generally all laminated surfaces are corona treated in order to improve lamination.
    Type: Grant
    Filed: December 24, 1986
    Date of Patent: August 16, 1988
    Assignee: W. R. Grace & Co.
    Inventors: John C. Wood, Krzystjan P. Sladowski
  • Container for printed circuit boards
    Patent number: 4763781
    Abstract: A storage container for electrostatic discharge sensitive devices comprises an enclosable polymeric outer shell, a polymeric inner shell disposed within the outer shell, grooves in the inner shell for accommodating electrostatic discharge sensitive devices, and means for affixing the inner shell to the outer shell.
    Type: Grant
    Filed: June 19, 1986
    Date of Patent: August 16, 1988
    Assignee: W.R. Grace & Co., Cryovac Div.
    Inventors: Dennis C. Donalson, Robert R. Wilkie
  • Multilayer film with better layer adhesion
    Patent number: 4762748
    Abstract: A pasteurizable and/or cook-in shrink film is provided with good interlaminar adhesion and good orientability, and characterized by the presence of ethylene alkyl acrylate copolymer in shrink and abuse layers, in adhesive layers, or both. An associated method for making the film is also provided that includes coextrusion of the multilayer film, optional irradiation, and orientation.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: August 9, 1988
    Assignee: W. R. Grace & Co.
    Inventor: Timothy T. Oberle
  • Multilayer gusseted bag with reverse fin seals
    Patent number: 4761080
    Abstract: A gusseted bag is provided which, according to a preferred mode, is constructed of thermoplastic multilayer film with an outer sealing layer and has a seamless folded bottom and reverse-fin-sealed sides. Advantageously, the starting material for such bags is lay-flat tubular film cut longitudinally along the center of one side, which is folded and joined to itself along each side of the longitudinal cut, respectively. In an alternate mode wherein the bag bottom is not seamless but is end-sealed, the bag is constructed by joining together two such lay-flat tubes along each side of their longitudinal cuts, respectively.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: August 2, 1988
    Assignee: W. R. Grace & Co., Cryovac Div.
    Inventor: Henry G. Schirmer
  • Packaging of plant tissue
    Patent number: 4759444
    Abstract: Plant tissue, such as fresh herbs, is packaged by suspending the tissue between sheets having no more than about 90% vapor impermeable surface area, and affixing the ends of the sheets to a container, or a gas flushed overwrap material.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: July 26, 1988
    Assignee: W. R. Grace & Co.
    Inventor: Charles R. Barmore
  • Oxygen barrier oriented shrink film
    Patent number: 4755419
    Abstract: A coextruded multiple layer oriented film comprises a core layer of ethylene vinyl alcohol copolymer, and two intermediate layers each comprising a polyamide. Two outer layers comprising polymeric materials or blends of polymeric materials such as (a) linear low and linear medium density polyethylene, and EVA, and (b) blends of polypropylene and ethylene propylene copolymer are adhered to the intermediate polyamide layers by means of modified polymeric adhesive materials. A multilayer film with a combination of oxygen barrier properties, toughness, shrinkability, and good optical properties is obtained.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: July 5, 1988
    Assignee: W. R. Grace & Co., Cryovac Div.
    Inventor: Gautam P. Shah
  • Inter-ply adhesion between saran and linear ethylene copolymers
    Patent number: 4755436
    Abstract: A multi-layer film is disclosed having improved adhesion between layers and consisting essentially of the following elements:(a) a layer consisting essentially of vinylidene chloride copolymer; and,(b) a layer consisting essentially of about 5-40 wt. % of ethylene/butyl-acrylate copolymer having a melting point of about 110.degree. C. blended with about 95-60 wt. % of linear ethylene/alpha-olefin copolymer.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: July 5, 1988
    Assignee: W. R. Grace & Co., Cryovac Div.
    Inventor: Steven B. Garland
  • Protective patch for shrinkable bag
    Patent number: 4755403
    Abstract: Disclosed is a protective patch for a biaxially heat shrinkable, thermoplastic vacuum bag for protecting the bag from puncture by sharp protruding bones in bone-in cuts of meat which are vacuum packaged within the bags. The patch is made from multi-layer film and comprises a layer of linear low density polyethylene and a layer of ethylene vinyl acetate copolymer. The patch is biaxially heat shrinkable and shrinks with the bag. A method of making the patch is also disclosed.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: July 5, 1988
    Assignee: W. R. Grace & Co., Cryovac Div.
    Inventor: Daniel J. Ferguson